Process of producing a perforated thermoplastic sheet
United States Patent 3054148
Inventors:
Frederick, Zimmerli William
Publication Date:
09/18/1962
Assignee:
Frederick, Zimmerli William
Other Classes:
425/DIG.037, 264/154
International Classes:
B26F1/26; B44F11/00; B26F1/00
US Patent References:
| 2032935 | Rubber film or sheet | | | |
| 2055002 | Process of producing foraminous coated material | | | |
| 2161308 | Manufacture of goods of spongelike or cellular rubber | | | |
| 2219578 | Manufacture of medicinal capsules | | | |
| 2354916 | Method and apparatus for embossing plastic sheet material | | | |
| 2446771 | Method of imparting surface effects to thermoplastic sheets | | | |
| 2493439 | | | | |
| 2518565 | Apparatus for simultaneously producing multiple recesses in plastic sheet material | | | |
| 2567275 | Apparatus and method of goffering thermoplastic materials | | | |
| 2660757 | Method and apparatus for producing textured films | | | |